/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.3.1): popover.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

import $ from 'jquery'
import Tooltip from './tooltip'

/**
 * ------------------------------------------------------------------------
 * Constants
 * ------------------------------------------------------------------------
 */

const NAME = 'popover'
const VERSION = '4.3.1'
const DATA_KEY = 'bs.popover'
const EVENT_KEY = `.${DATA_KEY}`
const JQUERY_NO_CONFLICT = $.fn[NAME]
const CLASS_PREFIX = 'bs-popover'
const BSCLS_PREFIX_REGEX = new RegExp(`(^|\\s)${CLASS_PREFIX}\\S+`, 'g')

const Default = {
    ...Tooltip.Default,
    placement: 'right',
    trigger: 'click',
    content: '',
    template: '<div class="popover" role="tooltip">' +
        '<div class="arrow"></div>' +
        '<h3 class="popover-header"></h3>' +
        '<div class="popover-body"></div></div>'
}

const DefaultType = {
    ...Tooltip.DefaultType,
    content: '(string|element|function)'
}

const ClassName = {
    FADE: 'fade',
    SHOW: 'show'
}

const Selector = {
    TITLE: '.popover-header',
    CONTENT: '.popover-body'
}

const Event = {
    HIDE: `hide${EVENT_KEY}`,
    HIDDEN: `hidden${EVENT_KEY}`,
    SHOW: `show${EVENT_KEY}`,
    SHOWN: `shown${EVENT_KEY}`,
    INSERTED: `inserted${EVENT_KEY}`,
    CLICK: `click${EVENT_KEY}`,
    FOCUSIN: `focusin${EVENT_KEY}`,
    FOCUSOUT: `focusout${EVENT_KEY}`,
    MOUSEENTER: `mouseenter${EVENT_KEY}`,
    MOUSELEAVE: `mouseleave${EVENT_KEY}`
}

/**
 * ------------------------------------------------------------------------
 * Class Definition
 * ------------------------------------------------------------------------
 */

class Popover extends Tooltip {
    // Getters

    static get VERSION() {
        return VERSION
    }

    static get Default() {
        return Default
    }

    static get NAME() {
        return NAME
    }

    static get DATA_KEY() {
        return DATA_KEY
    }

    static get Event() {
        return Event
    }

    static get EVENT_KEY() {
        return EVENT_KEY
    }

    static get DefaultType() {
        return DefaultType
    }

    // Overrides

    isWithContent() {
        return this.getTitle() || this._getContent()
    }

    addAttachmentClass(attachment) {
        $(this.getTipElement()).addClass(`${CLASS_PREFIX}-${attachment}`)
    }

    getTipElement() {
        this.tip = this.tip || $(this.config.template)[0]
        return this.tip
    }

    setContent() {
        const $tip = $(this.getTipElement())

        // We use append for html objects to maintain js events
        this.setElementContent($tip.find(Selector.TITLE), this.getTitle())
        let content = this._getContent()
        if (typeof content === 'function') {
            content = content.call(this.element)
        }
        this.setElementContent($tip.find(Selector.CONTENT), content)

        $tip.removeClass(`${ClassName.FADE} ${ClassName.SHOW}`)
    }

    // Private

    _getContent() {
        return this.element.getAttribute('data-content') ||
            this.config.content
    }

    _cleanTipClass() {
        const $tip = $(this.getTipElement())
        const tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX)
        if (tabClass !== null && tabClass.length > 0) {
            $tip.removeClass(tabClass.join(''))
        }
    }

    // Static

    static _jQueryInterface(config) {
        return this.each(function() {
            let data = $(this).data(DATA_KEY)
            const _config = typeof config === 'object' ? config : null

            if (!data && /dispose|hide/.test(config)) {
                return
            }

            if (!data) {
                data = new Popover(this, _config)
                $(this).data(DATA_KEY, data)
            }

            if (typeof config === 'string') {
                if (typeof data[config] === 'undefined') {
                    throw new TypeError(`No method named "${config}"`)
                }
                data[config]()
            }
        })
    }
}

/**
 * ------------------------------------------------------------------------
 * jQuery
 * ------------------------------------------------------------------------
 */

$.fn[NAME] = Popover._jQueryInterface
$.fn[NAME].Constructor = Popover
$.fn[NAME].noConflict = () => {
    $.fn[NAME] = JQUERY_NO_CONFLICT
    return Popover._jQueryInterface
}

export default Popover